Front Power Take-Off Shaft Control; Fda Drive Control - Belarus 3522.5 Operator's Manual

2.13.5.4 Front power take-off shaft control

Front PTO control is similar to RPTO control.
The FPTO is controlled with buttons 3 and 32 (figure 2.13.4). Indication of RPTO
operation is performed by annunciators 2, 33, 34.
In initial condition, when the operator shifts the starter and instrument switch into position
""I – instruments are on", FPTO disengaged condition is set by default – the indicator 33 burns,
confirming the FPTO disengaged state.
To engage the FPTO it is necessary to press button 3. Right after pressing the but-
ton 3 the annunciator 2 will go off informing of the FPTO speeding up. Then, after a while,
when the RPTO reaches a normal operation mode, the annunciator of the FPTO engaged
condition 34 will light up.
To disengage the FPTO it is necessary to push button 32. Herewith the annuncia-
tors 2 and 34 will go out, and the annunciator of the FPTO disengagement 33 will light up,
confirming the FPTO is in disengaged condition.
ATTENTION: FOR EMERGENCY DISENGAGEMENT OF THE FRONT POWER
TAKE-OFF SHAFT PUSH BUTTON 1 (FIGURE 2.13.4)!
ATTENTION: FPTO CAN BE ENGAGED ONLY WHEN THE BUTTON 1 (FIGURE
2.13.4) IS IN PULLED POSITION!
Note – Additional information on the FPTO operation rules is given in subsection
4.2.7 "PTO use".

2.13.5.5 FDA drive control

Front driving axle drive is controlled with buttons 11 and 25 (figure 2.13.4). Indica-
tion of FDAD operation is performed by annunciators 10, 24, 26.
In initial condition, when the operator shifts the starter and instrument switch into position
""I – instruments are on", FDAD disengaged condition is set by default.
Use the mode "FDAD disengaged" on transport when moving on roads with hard
surface with speed above 13 km/h in order to prevent increased wear of front wheels.
Pressing button 11 "AUTO" with guide wheels position corresponding to linear
movement, engages the FDAD in automatic mode. Simultaneously annunciators 10 and
24 go off.
The FDAD is disengaged automatically when the guide wheels turn to the angle
above 25° or when travel speed is above 16 km/h. As the travel speed goes below 13
km/h the FDAD shall automatically engage. The annunciator of FDAD automatic mode en-
gagement 10 will burn continuously, until this mode is disengaged, and the annunciator of
the FDAD engaged state 24 will burn only during FDAD operation.
The mode of "FDAD automatic control" shall be used at various field works, includ-
ing when driving in reverse.
ATTENTION: IN THE MODE OF "FDAD AUTOMATIC CONTROL" WITH REAR
WHEELS SKIDDING PREVENT FRONT WHEELS FROM TURNING AT ANGLES
CLOSE TO 25°, AS IN THIS CONDITION A CONSTANT ANTOMATIC ENGAGEMENT
AND DISENGAGEMENT OF FDAD WILL TAKE PLACE, AND THIS CAN CREATE
ABRUPT DYNAMIC LOADS IN TRANSMISSION AND FDAD!
The mode of "FDAD automatic control" is disengaged by repeated pressing the button
11 "AUTO" or by pressing and releasing the button of FDAD positive engagement 25. Herewith
the annunciators 10 and 24 will go out.
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